Sep 18 – 20, 2024
Europe/Vienna timezone

Session

Real-time MC

Sep 19, 2024, 3:00 PM

Description

The real-time community around Linux has been responsible for important changes in the kernel over the last few decades. Preemptive mode, high-resolution timers, threaded IRQs, sleeping locks, tracing, deadline scheduling, and formal tracing analysis are integral parts of the kernel rooted in real-time efforts, mostly from the PREEMPT_RT patch set. The real-time and low latency properties of Linux have enabled a series of modern use cases, like low latency network communication with NFV and the use of Linux in safety-critical systems.

This MC is the space for the community to discuss the advances of Linux in real-time and low latency features. For example (but not limited to):

  • Bits left for the PREEMPT_RT merge
  • Advances in the fully preemptive mode
  • CPU isolation (mainly about how to make it dynamic)
  • Tools for PREEMPT_RT and low latency analysis
  • Tools for detecting non-optimal usages of the PREEMPT_RT
  • Improvement on locks non-protected for priority inversion
  • General improvements for locking
  • General improvements for scheduling
  • Other RT operating systems that run in parallel with Linux and the integration with Linux
  • Real-time virtualization

Examples of topics that the community discussed over the last years that made progress in the RT MC:

  • timerlat/osnoise tracers and RTLA
  • DL server for starvation avoidance
  • Proxy execution (still under discussion)
  • Tracing improvements - for example, to trace IPIs

Join us to discuss the future of real-time and low-latency Linux.

Presentation materials

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